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		<H2><A NAME="IDX631"></A><A NAME="HDRONHELP" ></A>5.3 Using Online Help</H2>
		<P>
The online <TT><STRONG>Help</STRONG></TT> facility offers the following
options in its pull-down menu:

		<UL COMPACT>
<A NAME="IDX632"></A>
<LI><TT><STRONG>Context-Sensitive Help</STRONG></TT> can help you with a
specific tool or feature of Data Explorer&#39;s graphical
user interface.
After you select this option and the cursor has changed to a question
mark, click on the item you want help with.
For example, try clicking on a particular module
in the VPE window or on
an interactor in a Control Panel.
<P><B>Note: </B>You can also position the mouse cursor over an object and press
the <TT><STRONG>F1</STRONG></TT> key to select an object in any window,
including the options in a pull-down menu and icons on
a VPE canvas..
<LI><TT><STRONG>Overview (of Window)...</STRONG></TT> gives an introductory
<A NAME="IDX633"></A>
description of the window from which this option was requested.
<LI><TT><STRONG>Table of Contents...</STRONG></TT> presents a list of the
main topics and subtopics of the Data Explorer user manuals.
Select the desired item by clicking on its box once.
<A NAME="IDX634"></A>
<LI><TT><STRONG>Using Help...</STRONG></TT> explains how to use the online
facility itself.
<A NAME="IDX635"></A>
<LI><TT><STRONG>Product Information...</STRONG></TT> gives the version of
Data Explorer that is currently running.
<A NAME="IDX636"></A>
<A NAME="IDX637"></A>
<LI><TT><STRONG>Technical Support</STRONG></TT> gives information on how to get <A HREF="qikgu033.htm">technical support</A>. <A NAME="IDX638"></A>
<LI><TT><STRONG>Tutorial...</STRONG></TT> presents a list of tutorial
topics, which can be accessed directly.
<A NAME="IDX639"></A>
<LI><TT><STRONG>Application Comment</STRONG></TT> presents a comment on the
currently loaded visual program (if one was supplied by the user
who created the program).
</UL>
<P>
<A HREF="#FIGUSE2Z">Figure 32</A> depicts a sample Help window.
<P><B><A NAME="FIGUSE2Z" HREF="../usrguide.htm#FT_FIGUSE2Z">Figure 32. Sample Help
Window</A></B><BR>
<B><BR><CENTER><IMG SRC="../images/helpwin.gif" ALT="Figure helpwin not
displayed."></CENTER><BR></B><BR>
		<P>

In addition, an HTML version of the documentation is available. Point your
browser at <TT>$(DXROOT)/html/index.htm</TT>. The html documentation can now be accessed as the context-sensitive help within OpenDX instead of the internal help system. By setting an environment variable, DX will override its older built-in help and launch a browser to display the html help. In the UN*X environment set the environment variable DX_WEB_BROWSER to your web browser or a url handler script such as the one included in the dx/bin directory. Within Windows or MacOS X just set this environment variable and the system default browser will launch. 
		<P>The HTML version of the docs also includes a JavaScript local search engine.</P>
		<TABLE BORDER WIDTH="100%"><TR><TH ALIGN="LEFT">For Future
Reference</TH><TR><TD>
<UL COMPACT>
<LI>In the <TT><STRONG>Help</STRONG></TT> window you can directly access
any topic, subtopic, <I>sub</I>subtopic, or
related item that is "boxed", simply by
clicking on the box.
<LI>If the amount of information exceeds the length of the displayed
<TT><STRONG>Help</STRONG></TT> window, use the vertical
scroll bar on the right side of the window.
<LI>To return to a topic you have viewed during the current session of
visual program, move the mouse cursor into the <TT><STRONG>Help</STRONG></TT>
window
and press the <I>right-hand</I> button:
A list of viewed Help topics appears.
Keeping the mouse button depressed, move the cursor to the desired
topic in the list and then release the button.
<LI>To return to the previous Help topic, click on
<TT><STRONG>Go Back</STRONG></TT> at the bottom of
the <TT><STRONG>Help</STRONG></TT> window.
<LI>To exit online Help, click on <TT><STRONG>Close</STRONG></TT> at the
bottom of the <TT><STRONG>Help</STRONG></TT> window.
</UL>
</TD></TR></TABLE>
		<P>
<H3><A NAME="HDRUSRHELP" ></A>User-Defined Help Files</H3>
<A NAME="IDX640"></A>
<A NAME="IDX641"></A>
<A NAME="IDX642"></A>
<A NAME="IDX643"></A>
<A NAME="IDX644"></A>
<A NAME="IDX645"></A>
<P>
Visual programmers can create online documentation for their visual programs and
Control Panels.
A user can access the comments for the visual program from any primary window,
and can access
the comments for a Control Panel from the Control Panel with which
the comments are associated.
For information
on how to add this documentation to your own visual program,
see <A HREF="usrgu041.htm#HDRADCOM">"Adding Comments to a Visual Program"</A>
and <A HREF="usrgu043.htm#HDRCCP">"Customizing a Control Panel"</A>.
<P>
To access comments for the visual program, select the <TT><STRONG>Application
Comment</STRONG></TT> option from the <TT><STRONG>Help</STRONG></TT>
pull-down menu.
A dialog box opens with the comments.
<TABLE><TR><TD ALIGN="LEFT" VALIGN="TOP"><B>Note:</B></TD><TD ALIGN="LEFT"
VALIGN="TOP">If there are no comments associated with the visual program, this
menu option
is grayed-out.
Also, you cannot modify the comments when using this option--only
view them.
</td></tr></table>
<P>
The user can also access the comments for the visual program from the
<TT><STRONG>Open...</STRONG></TT> or <TT><STRONG>Load
Macro...</STRONG></TT> file selection
dialog boxes, even before the visual program
is opened.
For information on how to do this, see <A
HREF="usrgu041.htm#HDRRESTPRE">"Restoring a Previously Created Program"</A>.
<A NAME="IDX646"></A>
<P>
To access comments for a specific Control Panel, select the
<TT><STRONG>On Control Panel</STRONG></TT> option from the
<TT><STRONG>Help</STRONG></TT> pull-down menu in the
Control Panel about which you
want to learn.
A dialog box opens with the comments.
<TABLE><TR><TD ALIGN="LEFT" VALIGN="TOP"><B>Note:</B></TD><TD ALIGN="LEFT"
VALIGN="TOP">If there are no comments associated with the Control Panel,
this menu option is grayed-out.
Also, you cannot modify the comments when using this option--only
view them.
</td></tr></table>
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